组合投资在E－Sh风险下的有效边界

The Effective Border of Portfolio Investment under E-Sh Risk

本文从Ｅ－Ｓｈ风险的角度给出了投资者的决策方案集──有效边界，提出了半协方差的概念，并对在Ｅ－Ｖ风险和Ｅ－Ｓｈ风险下的有效边界以及二种目标下的投资决策作了比较。

This paper gives a solution set of the investment decision-making, i.e. effective border from the views of E-Sh risk. The author provides the concept of semi-covariance also. The comparatives of the different effective borders under the E-V risk and the E-Sh risk. the comparatives of the different investment decision-making methods under the two different goals are discussed in the paper.